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LSI +61°303: A Pulsar Wind Nebula in a Binary?

Published online by Cambridge University Press:  19 July 2016

D. A. Leahy
D. A. Leahy*
Affiliation:
University of Calgary, Alberta T2N 1N4, Canada

Abstract

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LSI +61°303 outbursts are modeled as a pulsar wind nebula expanding inside the environment provided by the Be companion star's stellar wind and photon flux. A set of equations describing the system is developed and solved numerically for representative sets of parameters. Emission in X-rays through gamma-rays is due to inverse Compton emission from relativistic electrons around the pulsar. The radio emission is due to synchrotron emission of varying optical depth, which yields a varying spectral index. The peak of X-ray emission is near periastron and the peak of the radio emission is near apastron, due to reduced confining pressure on the relativistic electron cloud and its subsequent rapid expansion.

Type
Part 4: Pulsar Wind Nebulae and Their Environments
Information
Symposium - International Astronomical Union , Volume 218: Young Neutrons Stars and their Environments , 2004 , pp. 219 - 220
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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